The shootout makes clear:

"How can we benchmark a programming language? We can't - we benchmark programming language implementations.

How can we benchmark language implementations? We can't - we measure particular programs."

The other thing that I have to note is that "Time measurements include program startup time." Which I think would distort something like Erlang greatly. It takes a long(ish) time for Erlang to start up, but then it runs very fast.